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Moonstone — may refer to: Moonstone (gemstone), gemstone Wilkie Collins The Moonstone, 1868 book by Wilkie Collins, considered the first detective novel in English The Moonstone, 1934 American film directed by Reginald Barker based on the book Mount St.… … Wikipedia

Moonstone — Moon stone (m[=oo]n st[=o]n ), n. (Min.) A nearly pellucid variety of feldspar, showing pearly or opaline reflections from within. It is used as a gem. The best specimens come from Ceylon. [1913 Webster] … The Collaborative International Dictionary of English

moonstone — /moohn stohn /, n. 1. Also called precious moonstone. a semitransparent or translucent, opalescent, pearly blue variety of adularia, used as a gem. 2. any of several adularescent feldspars, as certain varieties of albite, labradorite, or… … Universalium